5763 JAN NATO

20.00 USD

12.00 USD Save 8.00 USD

Tough Mil. Spec. beam power amplifier tubes manufactured in the United States by renowed Philips, similar to 6062 and CV2129. These oustanding 9-pin miniature glass tubes have gray plates and top disc getters. They are printed in green JAN 5763 PHILIPS ECG U.S.A. and coded 8539 AKN indicating 1985 production. They are boxed in white military boxes NATO coded 5960-00-188-3915 under contract DLA900-85-G-0008-0011 delivery date October 1985, with bar coded sticker.

Condition

New Old Stock (New in box)

	Tube Matching 6.00 USD by tube
LEARN MORE WHY ? A tube may have one, two, or three internal sections depending on the purpose of the tube; somtimes these sections are all the same, sometimes they are different. Due to manufacturing and material tolerances, there may be slight differences between the original specification and the actual tube. Tube matching tests each one of these internal sections and selects tubes, compared to original specifications at manufacture, for balanced performance and good sound. HOW ? All our tubes are tested by us prior to packing on our Stark, AVO, Simpson or RF Laboratories Inc. calibrated testers. On request for tube matching, tubes are matched for Mutual Conductance in Micromhos and Plate Current in Milliamps on our Amplitrex or Radioelec Duovac testers, with results printed for each individual tube. Certain tubes difficult to test are matched for Mutual Conductance in Micromhos only on one of our regular calibrated testers. On request we can also test for Microphonics.